JM

John Y. Ma

C( Capetronic (Bsr): 9 patents #1 of 4Top 25%
AL Astec International Limited: 2 patents #74 of 295Top 30%
PV Ppt Vision: 2 patents #7 of 14Top 50%
Overall (All Time): #198,616 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
6509559 Binary optical grating and method for generating a moire pattern for 3D imaging Franz W. Ulrich, Darcy J. Hart 2003-01-21
6501554 3D scanner and method for measuring heights and angles of manufactured parts Joshua J. Hackney, Arye Malek, Matthew M. McPherson, Xin Shi 2002-12-31
5912595 Digitally temperature compensated voltage-controlled oscillator tunable to different frequency channels Sik Hing Yuen 1999-06-15
5159711 Interference filter with high degree of selectivity for TVRO receiver system Chung W. Cheong 1992-10-27
5060297 TVRO receiver system with tracking filter for rejection of image frequencies Bonnie Houston 1991-10-22
5003622 Printed circuit transformer Po P. Leung 1991-03-26
4876739 TVRO receiver system with low-cost video-noise reduction filter Albert C. Houston 1989-10-24
4816769 BPSK demodulator and FM receiver for digital data pagers Louis H. M. Jandrell 1989-03-28
4805232 Ferrite-core antenna 1989-02-14
4801940 Satellite seeking system for earth-station antennas for TVRO systems David H. McCracken, Steven A. Weiss, Albert C. Houston 1989-01-31
4792993 TVRD receiver system with automatic bandwidth adjustment 1988-12-20
4785302 Automatic polarization control system for TVRO receivers David H. McCracken, Steven A. Weiss, Albert C. Houston 1988-11-15
4783848 TVRO receiver system for locating audio subcarriers David H. McCracken 1988-11-08
4761825 TVRO earth station receiver for reducing interference and improving picture quality 1988-08-02
4746879 Digitally temperature compensated voltage-controlled oscillator Steven A. Weiss 1988-05-24
4718117 TVRO receiver system with low-cost video-noise reduction filter Albert C. Houston 1988-01-05
4709409 TVRO receiver with surface mounted high frequency voltage-controlled oscillator Leo Wu 1987-11-24
4684858 Motor pulse extraction system Steven A. Weiss 1987-08-04
4626862 Antenna having coaxial driven element with grounded center conductor 1986-12-02
4625183 Low-cost VCO using lumped elements in microwave band 1986-11-25
4619000 CATV converter having improved tuning circuits 1986-10-21
4352209 Up-down frequency converter for cable T.V. 1982-09-28